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RIKEN SPring-8 Center Imaging System Development Team

Team Leader: Yukio Takahashi (D.Eng.)

Research Summary

Yukio  Takahashi(D.Eng.)

The imaging system development team is developing novel X-ray imaging systems using high brilliant X-rays, and constructing a platform for visualizing materials structure at large spatio-temporal scale. We apply it to the structural imaging of various materials, and expand to industrial utilization research.

Main Research Fields

  • Interdisciplinary Science & Engineering

Related Research Fields

  • Engineering
  • Chemistry
  • Informatics
  • Biology
  • Quantum beam science
  • Material engineering
  • Nano/Micro science

Keywords

  • X-ray Imaging
  • Ptychography
  • Materials Science

Selected Publications

  • 1. Hirose, M., Shimomura, K., Higashino, T., Ishiguro, N., and Takahashi, Y.:
    "Nanoscale determination of interatomic distance by ptychography-EXAFS method using advanced Kirkpatrick-Baez mirror focusing optics"
    Journal of Synchrotron Radiation 27, 455-461 (2020).
  • 2. Hirose, M., Higashino, T., Ishiguro, N., and Takahashi, Y.:
    "Multibeam ptychography with synchrotron hard X-rays"
    Optics Express 28, 1216-1224 (2020).
  • 3. Hirose, M., Ishiguro, N., Shimomura, K., Nguyen, D.-N., Matsui, H., Dam, H. C., Tada, M., and Takahashi, Y.:
    "Oxygen-diffusion-driven oxidation behavior and tracking areas visualized by X-ray spectro-ptychography with unsupervised learning"
    Communications Chemistry 2, 50 (2019).
  • 4. Shimomura, K., Hirose, M., Higashino, T., and Takahashi, Y.:
    "Three-dimensional iterative multislice reconstruction for ptychographic X-ray computed tomography"
    Optics Express 26, 31199-31208 (2018).
  • 5. Hirose, M., Ishiguro, N., Shimomura, K., Burdet, N., Matsui, H., Tada, M., and Takahashi, Y.:
    "Visualization of Heterogeneous Oxygen Storage Behavior in Platinum-Supported Cerium-Zirconium Oxide Three-Way Catalyst particles by Hard X-ray Spectro-Ptychography"
    Angewandte Chemie International Edition 130, 1490-1495 (2018).
  • 6. Shimomura, K., Hirose, M., and Takahashi, Y.:
    "Multislice imaging of integrated circuits by precession X-ray ptychography"
    Acta Crystallographica Section A 74, 66-70 (2018).
  • 7. Hirose, M., Shimomura, K., Burdet, N., and Takahashi, Y.:
    "Use of Kramers-Kronig relation in phase retrieval calculation in X-ray spectro-ptychography"
    Optics Express 25, 8593-8603 (2017).
  • 8. Suzuki, A., Shimomura, K., Hirose, M., Burdet, N., and Takahashi, Y.:
    "Dark-field X-ray ptychography: Towards high-resolution imaging of thick and unstained biological specimens"
    Scientific Reports 6, 35060 (2016).
  • 9. Hirose, M., Shimomura, K., Suzuki, A., Burdet, N., and Takahashi, Y.:
    "Multiple defocused coherent diffraction imaging: Method for simultaneously reconstructing objects and probe using X-ray free-electron lasers"
    Optics Express 24, 11917-11925 (2016).
  • 10. Burdet, N., Shimomura, K., Hirose, M., Suzuki, A., and Takahashi, Y.:
    "Efficient use of coherent X-rays in ptychography: Towards high-resolution and high-throughput observation of weak-phase objects"
    Applied Physics Letters 108, 071103 (2016).

Lab Members

Principal investigator

Yukio Takahashi
Team Leader

Contact Information

1-1-1 Kouto, Sayo-cho
Sayo-gun, Hyogo
679-5148 Japan
Email: yukio [at] spring8.or.jp

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